4. Conclusion
Flooring is one of major formaldehyde and TVOC emission
wood products. However, formaldehyde and TVOC emission can
be reduced during the manufacturing process if the emission levels
at each manufacturing steps are found. When LPM and UV coat-ing were applied on HDF for laminate flooring and fancy veneer
with plywood for engineered flooring, formaldehyde and TVOC
emission decreased because these LPM and UV coatings func-tioned as a covering material. Although formaldehyde and TVOC
emission dramatically increased when fancy veneer was bonded
on plywood with formaldehyde-based resin, UV-curable coating
returned it to the same emission levels of plywood. FLEC was
a useful test method for flooring materials during manufactur-ing steps because this method considered the surface of samples.
Knowing the impact of such an interaction on the emission of
volatile organic compounds and change in the distribution of
VOCs qualitatively and quantitatively during the different pro-cess steps of flooring products could pave the way to understand
the release behavior of the VOCs and to decrease their emis-sion Roffael[33]. A deep understanding of the process variables
affecting the release of VOCs from wood products such as flooring
during various manufacturing steps with different wood species
is needed. Therefore, formaldehyde and VOCs emission from
floorings can be controlled at manufacturing steps for surface fin-ishing